These unique sheets combine the wonderful qualities and soy and cotton, creating a sheet that is soft, durable and natural. The long fibers of the soy plant are incredibly soft, light and comfortable, much like the qualities of cashmere or silk. Its breathable nature blends perfectly with cotton, creating a truly magical sheet fabric. Soy is also an excellent Eco Fiber, coming from the earth and being completely biodegradable. Cotton's natural absorbency combines with soy to create a wrinkle resistant fabric with little or no shrinkage. 50% soy 50% cotton, 300 thread count sateen. Fitted sheets fit mattresses up to 16" deep. Full and Queen sets include one fitted sheet, one flat sheet and two standard pillowcases. Additional pillowcases sold separately. Machine washable.